READ TERR 1 2 READ SERR 4 !Time T_+ve T_-ve Rate Ratepos Rateneg FracExp BGrate BGerr CorrFact CtsInSrc BGInSrc Exposure Sigma SNR 31359.875 4259.568 -1825.013 2.568634e-02 7.896921e-03 -6.554623e-03 0.152880 6.876031e-05 1.433751e-05 1.847066 13 0.063961 930.208300 969.945223 3.918812